A5300 SMG control unit

Connector location views

NumberX-pin, colourDescription
X530019-pin, bluePlug connector SMG control unit
X5300352-pin, bluePlug connector SMG control unit
X5300440-pin, bluePlug connector SMG control unit

Pin assignments at plug connector X53001

PinTypeDescription / Signal typeConnection /
Measuring notes
1ETerminal 15Connector terminal 15
   
2 Not used 
   
3E/ADiagnosis signal TXDDigital motor electronics control unit
   
4 Not used 
   
5MGroundGround connector
   
6MGroundGround connector
   
7ETerminal 30Connector terminal 30
   
8ETerminal 30Connector terminal 30
   
9 Not used 
   

Pin assignments at plug connector X53003

PinTypeDescription / Signal typeConnection /
Measuring notes
1 Not used 
   
2 Not used 
   
3ESignal, selector lever position S2Selector lever ASG
   
4ESignal, selector lever position S3Selector lever ASG
   
5ETerminal RFuse F22
   
6ESignal, selector lever position R2Selector lever ASG
   
7ESignal, selector lever position S1Selector lever ASG
   
8ESignal, selector lever position S4Selector lever ASG
   
9ESignal, selector lever position N1Selector lever ASG
   
10ESignal, selector lever position R1Selector lever ASG
   
11ETerminal RFuse F8
   
12ESignal, program button, upProgram button
   
13AVoltage supply Longitudinal acceleration sensorLongitudinal acceleration sensor
   
14ESignal, switch off consumer loadConnector Load cutout
   
15 Not used 
   
16ESignal, program button, downProgram button
   
17 Not used 
   
18ESignal Longitudinal acceleration sensorLongitudinal acceleration sensor
   
19ESignal, selector lever position N2Selector lever ASG
   
20MGround Longitudinal acceleration sensorLongitudinal acceleration sensor
   
21 Not used 
   
22 Not used 
   
23 Not used 
   
24 Not used 
   
25 Not used 
   
26ESignal Solenoid valve Shift lock selector lever lockShift lock selector lever lock
   
27 Not used 
   
28 Not used 
   
29 Not used 
   
30 Not used 
   
31 Not used 
   
32 Not used 
   
33 Not used 
   
34 Not used 
   
35 Not used 
   
36 Not used 
   
37 Not used 
   
38 Not used 
   
39 Not used 
   
40ESignal, steering wheel button, upSteering wheel button, up
   
41ESignal, steering wheel button, downSteering wheel button, down
   
42 Not used 
   
43 Not used 
   
44ESignal, bonnet switch, rightRH bonnet switch ASG
   
45ESignal, bonnet switch, leftLH bonnet switch ASG
   
46 Not used 
   
47 Not used 
   
48ESignal, gearshift position L2Electronic immobiliser control unit
   
49ATD signalConnector TD signal
   
50 Not used 
   
51 Not used 
   
52 Not used 
   

Pin assignments at plug connector X53004

PinTypeDescription / Signal typeConnection /
Measuring notes
1 Not used 
   
2AVoltage output +5VConnector X8089
   
3ESignal, selection angle potentiometer 1Gear position sensor
   
4MGroundGround connector
   
5ESignal, selection angle potentiometer 2Gear position sensor
   
6ESignal, clutch sensorClutch position sensor, SMG
   
7ESignal, clutch sensorClutch position sensor, SMG
   
8ESignal, clutch positionClutch position sensor, SMG
   
9ESignal, clutch positionClutch position sensor, SMG
   
10MNegative activation Solenoid valve, shift path, backHydraulic unit SMG
   
11ESignal Transmission rpm sensorTransmission rpm sensor
   
12ESignal, pressure sensor for hydraulic unitHydraulic unit SMG
   
13ESignal Transmission fluid temperature sensorTransmission fluid temperature sensor
   
14ESignal, selection angle potentiometer 1Gear position sensor
   
15ESignal, selection angle potentiometer 2Gear position sensor
   
16AActivation Relay, hydraulic pumpRelay, hydraulic pump
   
17 Not used 
   
18MSensor ground, clutch positionClutch position sensor, SMG
   
19 Not used 
   
20MNegative activation Solenoid valve, shift path, forwardHydraulic unit SMG
   
21ESignal, hydraulic temperatureHydraulic unit SMG
   
22 Not used 
   
23MSensor ground, clutch positionClutch position sensor, SMG
   
24 Not used 
   
25 Not used 
   
26A/ECAN bus highSMG control unit
   
27A/ECAN bus lowSMG control unit
   
28MNegative activation Solenoid valve, clutchHydraulic unit SMG
   
29APositive activation Solenoid valve, shift path, backHydraulic unit SMG
   
30APositive activation Solenoid valve, clutchHydraulic unit SMG
   
31MSensor groundGround connector
   
32 Not used 
   
33 Not used 
   
34AVoltage output +5VGear position sensor
   
35 Not used 
   
36A/ECAN bus highDigital motor electronics control unit
   
37A/ECAN bus lowDigital motor electronics control unit
   
38MNegative activation Solenoid valve, selection angleHydraulic unit SMG
   
39APositive activation Solenoid valve, shift path, forwardHydraulic unit SMG
   
40APositive activation Solenoid valve, selection angleHydraulic unit SMG